org.jikesrvm.compilers.opt.util
Interface GraphNode

All Superinterfaces:

GraphElement

All Known Subinterfaces:

DF_LatticeCell

All Known Implementing Classes:

AnnotatedLSTNode, BasicBlock, CoalesceGraph.Node, DepGraphNode, DF_AbstractCell, DF_Equation, DominatorCell, ExceptionHandlerBasicBlock, IndexPropagation.ArrayCell, IndexPropagation.ObjectCell, LSTNode, SortedGraphNode, SpaceEffGraphNode, ValueGraphVertex

public interface GraphNode
extends GraphElement

A generic interface for graph nodes. All graph utilities should be defined in terms of this interface, and all graph implementations should make sure their nodes implement this interface.

See Also:

Graph, GraphEdge, GraphUtilities

outNodes

Enumeration<GraphNode> outNodes()

Get an enumeration of all the edges to which edges sourced at this node point.

Returns:

an enumeration of all the edges to which edges sourced at this node point.

inNodes

Enumeration<GraphNode> inNodes()

Get an enumeration of all the edges at which edges that point to this node are sourced.

Returns:

an enumeration of all the edges at which edges that point to this node are sourced.

getIndex

int getIndex()

The index of this node in its graph. In general, this can e anarbitrary number, but after a call to Graph.compactNodeNumbering the nodes of a graph should be numbered 0 thru (# of nodes in graph - 1).

Returns:

the index of this node in its graph.

setIndex

void setIndex(int i)